diff --git a/CommAlg/StrictSeries.lean b/CommAlg/StrictSeries.lean
index d36b411..01cacee 100644
--- a/CommAlg/StrictSeries.lean
+++ b/CommAlg/StrictSeries.lean
@@ -1,4 +1,5 @@
 /-
+Modified by Grant Barkley.
 Most of this file is Copyright (c) 2021 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the Mathlib file LICENSE.
 Authors: Chris Hughes